/**
 * https://leetcode-cn.com/problems/mini-parser/
 * 迷你语法分析器
 */

class Solution {
    public NestedInteger deserialize(String s) {
        
        return null;
    }
}

// This is the interface that allows for creating nested lists.
// You should not implement it, or speculate about its implementation
public interface NestedInteger {
    // Constructor initializes an empty nested list.
    public NestedInteger();

    // Constructor initializes a single integer.
    public NestedInteger(int value);

    // @return true if this NestedInteger holds a single integer, rather than a
    // nested list.
    public boolean isInteger();

    // @return the single integer that this NestedInteger holds, if it holds a
    // single integer
    // Return null if this NestedInteger holds a nested list
    public Integer getInteger();

    // Set this NestedInteger to hold a single integer.
    public void setInteger(int value);

    // Set this NestedInteger to hold a nested list and adds a nested integer to it.
    public void add(NestedInteger ni);

    // @return the nested list that this NestedInteger holds, if it holds a nested
    // list
    // Return empty list if this NestedInteger holds a single integer
    public List<NestedInteger> getList();
}